CVE-2019-6493

5.5 mediumEPSS 0.5%

Medium (5.5) in iobit smart defrag. EPSS 0.5% chance of exploitation in the next 30 days.

SmartDefragDriver.sys (2.0) in IObit Smart Defrag 6 never frees an executable kernel pool that is allocated with user defined bytes and size when IOCTL 0x9C401CC0 is called. This kernel pointer can be leaked if the kernel pool becomes a "big" pool.

Severity

CVSS 3.0

5.5 medium

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS: 0.5% chance of exploitation in the next 30 days; higher than 42% of CVEs (scores of 2026-10-31)
CWE: CWE-401
Published: 2019-04-11
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

iobit:smart_defrag

References

https://downwithup.github.io/CVEPosts.html
https://www.iobit.com/en/iobitsmartdefrag.php
https://downwithup.github.io/CVEPosts.html
https://www.iobit.com/en/iobitsmartdefrag.php

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